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rjkz [21]
3 years ago
13

The picture below shows the skeleton of an extinct mammal.

Biology
1 answer:
IRISSAK [1]3 years ago
5 0
The extinct animal is most similar to the bottom left due to the spinal similarities. The spine does not demonstrate a sigmoidal curve like the bottom right does. Answer would be bottom left.
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This phylogenetic tree shows how scientists believe the Danes, Chinese, and Tibetans are related based on the analysis of many g
Drupady [299]

Answer:

Phylogenetic trees can be described as diagrams which represents the evolutionary histories of organisms. The organisms that share more common traits or functions are more closer to one another in the diagram.

The phylogenetic tree in the above diagram shows that the ancestors of Danes, Chinese and Tibetans carried the regular EPAS1 alleles.

According to the tree, the Chinese are more closer to the Tibetans as they carry the Tibetan EPAS1 alleles which the Danes do not carry.

6 0
3 years ago
Use a diagram to show how ions are formed when a sodium atom comes into close contact with a chlorine atom
Sergio039 [100]
Just draw a dot and cross diagram showing covalent bonding between sodium and chlorine.
7 0
3 years ago
When selecting among multiple possible phylogenetic trees that fit our data, we commonly use the principle of _____, which means
nordsb [41]

a. parsimony; simplest; fewest

When selecting among multiple possible phylogenetic trees that fit our data, we commonly use the principle of <u>parsimony</u>, which means we choose the <u>simplest</u> possible hypothesis. In phylogenetic analysis, that means selecting the tree that represents the <u>fewest</u> evolutionary changes or mutations.

Explanation:

Phylogeny describes the evolutionary history of on organism or group of organisms.  

A phylogenetic tree structure is used to describe the relationship between various organisms which have originated from common ancestors.  

The Principle of Parsimony is best applied while constructing phylogenetic tree.  

This principle emphasizes on simple observations on a phylogeny which requires only few changes or variations which explain for the difference between the phylogenic sequences.  

This tree structure will only have few specific genetic variations or mutations or evolutionary changes which took place through new appearance of a trait or disappearance of an existing trait.

4 0
3 years ago
What are the three meningeal layers of the brain in order from deepest to most superficial?
leonid [27]
From the deepest to most superficial: pia mater, arahnoid, dura mater
7 0
3 years ago
If one side of a DNA molecule is: AGATTCGAACCT, what would the complementary strand be?
Veseljchak [2.6K]

Answer:

TCTAAGCTTGGA

Explanation: adenine (A), thymine (T), cytosine (C) and guanine (G). Each base can only bond with one other, A with T and C with G.

3 0
3 years ago
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